Regarding Dispute of Canal and pathway

Hello layers ! I have a query regarding disputed canal and pathway. I have 19 kanal land inherited from my grandfather. This land is away from public pathway (Sarkari Rasta) which passed in village map and is attached with a Canal (Sarkari Khaal). In front of our land there was land (Equal share i.e.19 kanals) of my grandfathr's brother which was attached with public road and away from canal. So, my grandfather had a pathway to his land through his brothers land (which occupies about 9 marlas) and in turn my grandfather gave him a small canal from 'Sarkari canal' through his land to land for Irrigation. My Grandfathers brother sold out his entire share of land i.e. 19 canal to a person 'B' leaving just including the pathway which connected our property to public road in 1992. The Owner 'B' did not denied us to pass through his land in the view of mutual settelment made by my grandfather and his brother. About 10 years Ago Owner B sold out half of his land just beside our land to a person 'C' including the pathway and after the death of Owenr B his son also sold out remainng share to same person 'C' but son of owner B had left 9 marlas from his share collectivly at one place for our pathway, so that owner 'C' can cultivate that 9 marlas and allow us to make a walkroad throuh his land. But Owner C is cultivating that 9 marlas left by Son of Owner B as well as using the canal given by my grandfather and deniying either for giving pathway practically or making an agreement of pathway on Ashtam paper in written. What Should I do ? Plz guide me on following Points. 1.Can I claim my Right of easement through Owner 'C' land as Owner C is enyoing his right of easement by using passing canal through our land. 2. As 9 marlas are already left by Owner B's Son and those 9 marlas can gave me the pathway of only 5.5 ft (1 karam) width that is insufucient for passing a vahicle like tractor, Combine etc. Can I demand residual area required to make the pathway wide (from 5.5 ft to at least 11 ft ) from the Owner 'C' according to easementary right bcz he is using the canal through our land and no ready to gave me pathway in turn ? Plz Guide me and please clearly answer both of my points. Thanks!